package com.foreknow.springboot.mapper;

import com.foreknow.springboot.po.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;


/**
 * @author xiaoming
 * @version jdk1.8
 * @date 2022/8/13 21:58
 * @function:
 */
@Mapper
public interface UserMapper {
    /**
     * 根据用户编号与密码查询用户信息
     * @param userId
     * @param password
     * @return
     */
    @Select("select * from user where userId=#{userId}and password=#{password}")
    public User getUserByIdByPass(String userId, String password) ;

    /**
     * 根据用户编号查询用户表返回的行数
     * @param userId
     * @return
     */

    @Select("SELECT count(*) from user WHERE userId=#{userId}")
    public int getUserById(String userId) ;

    /**
     * 向用户表中添加一条记录
     * @param userId
     * @param password
     * @param userName
     * @param userSex
     * @return
     */
    @Insert("insert into user(userId,password,userName,userSex) values (#{userId},#{password},#{userName},#{userSex})")
    public int saveUser(String userId,String password,String userName,Integer userSex);
}
